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26 results about "Drug resistance" patented technology

Drug resistance is the reduction in effectiveness of a medication such as an antimicrobial or an antineoplastic in treating a disease or condition. The term is used in the context of resistance that pathogens or cancers have "acquired", that is, resistance has evolved. Antimicrobial resistance and antineoplastic resistance challenge clinical care and drive research. When an organism is resistant to more than one drug, it is said to be multidrug-resistant. The immune system of an organism is in essence a drug delivery system.

Long-chain non-coding RNA PRALR, and expression plasmid and use thereof

ActiveCN110129318AUseful for researchSuppress drug resistanceOrganic active ingredientsGenetically modified cellsChemotherapeutic drugsNon-coding RNA
The invention relates to a long-chain non-coding RNA PRALR, and an expression plasmid and a use thereof. Starting from TCONS-00013523 sequence, a complete gene sequence is discovered by 5'-RACE and 3'-RACE technologies and is named as PRALR (paclitaxel resistance-associated lncRNA, paclitaxel resistance-associated long-chain non-coding RNA). Then, the PRALR expression plasmid and siRNA are constructed, and the PRALR is further confirmed to be a novel ovarian cancer drug resistance-associated lncRNA; the constructed PRALR expression plasmid can significantly increase the expression quantity ofthe PRALR, and the designed siRNA can significantly reverse drug resistance of paclitaxel-resistant ovarian carcinoma cells. A powerful tool is provided for study of the mechanism of paclitaxel resistance and other chemotherapeutic drug resistance, and a reference is provided for clinical development of drugs to reverse the drug resistance of tumor to paclitaxel.
Owner:JINSHAN HOSPITAL FUDAN UNIV

Method and kit for detecting Helicobacter pylori drug resistance gene mutations

ActiveCN111996273AImprove detection efficiencyReduce testing costsMicrobiological testing/measurementDNA/RNA fragmentationGenes mutationMultiplex
The invention provides a method and kit for detecting Helicobacter pylori drug resistance gene mutations. Specifically, the method detects drug resistance gene site mutations of five commonly used Helicobacter pylori antibiotics (including clarithromycin, metronidazole, quinolones, amoxicillin and tetracycline) based on multiplex PCR-Time-of-flight mass spectrometry, and matching primer and probecombinations and the kit are provided.
Owner:BEIJING JIANWEI MEDICAL LAB CO LTD +1

Insect-resistant fusion gene mCryAb-VIP3A for coding insecticidal protein and expression vector and application thereof

ActiveCN111041036AHigh expressionImprove insect resistanceBiocideBacteriaBiotechnologyPlant cell
The invention discloses an insect-resistant fusion gene mCryAb-VIP3A for coding insecticidal protein and an expression vector and application thereof, and aims at solving the technical problem that the drug resistance trend of insects to an insecticidal preparation cannot be restrained. According to the invention, an insect-resistant gene and the insect-resistant fusion gene mCryAb-VIP3A are designed, the protein encoded by the insect-resistant fusion gene is also provided, and an expression vector constructed by the insect-resistant fusion gene and recombinant bacteria constructed by the expression vector are designed. The insect-resistant fusion gene is applied to preparation of insect-resistant plant cells. The protein encoded by the insect-resistant fusion gene is applied to preparation of an insect-resistant preparation. The insect-resistant fusion gene disclosed by the invention can be stably expressed in corn, so that the biotoxicity generated by singly transferring the originalVIP3A (a) gene into a plant is avoided, the gene silencing phenomenon existing in exogenous gene expression is overcome, more choices are provided for plant pest control, and a new method is providedfor restraining the drug resistance trend of insects to an insecticidal preparation.
Owner:HENAN ACAD OF AGRI SCI

Weeding composition containing diflufenican and mesosulfuron

The invention discloses a weeding composition containing diflufenican and mesosulfuron. The weeding composition contains the active components, namely diflufenican and mesosulfuron, in a weight ratio of (20-1):1. The weeding composition disclosed by the invention has the characteristics that the advantages of two single dosages, namely diflufenican and mesosulfuron, are combined after compounding as the diflufenican and mesosulfuron are different in weeding mechanism, the better weeding effect is achieved, synergistic effect is realized compared with use of single dose, dosage is reduced, cost is reduced, and safety is higher; weed controlling spectrum is expanded, and control effect on broadleaf weeds and gramineous weeds is better; and meanwhile, insecticide resistance produced by use of the single dose can be alleviated.
Owner:PLANT PROTECTION & QUALITY & SAFETY OF AGRI PRODS INST ANHUI ACAD OF AGRI SCI

Insecticidal composition containing flubendiamide and carbamate

ActiveCN104106587AGood compatibilityReduce dosageBiocideAnimal repellantsCarbamateFlubendiamide
The invention discloses an insecticidal composition containing flubendiamide and carbamate, and discloses the insecticidal composition having effective active components comprising an active component A and an active component B, wherein the active component A is selected from flubendiamide, the active component B is selected from any one of the following compounds of indoxacarb, isoprocarb, metolcarb, carbaryl and fenobucarb, and the weight ratio of the active component A to the active component B is 1:80 to 60:1. The composition has a synergistic effect on various insect pests harmful to agricultural production, reduces the dosage of pesticides, reduces the residual quantity of the pesticides on crops, relieves environmental pollution, is safe to human and livestock, is good in environment compatibility, and allows the insect pests not to easily produce drug resistance.
Owner:BEIJING DANONG TIMES PESTICIDE TECH RES INST

Cow feed for preventing and treating diarrhea

InactiveCN106922977AResidue reductionPrevent diarrheaFood processingAnimal feeding stuffSide effectTreatment effect
The invention relates to the technical field of feeds, in particular to a cow feed for preventing and treating diarrhea. The cow feed consists of the following substances in parts by weight: 45-55 parts of corn flour, 45-55 parts of flour, 15-25 parts of glucose, 25-45 parts of soybean meal, 18-25 parts of germ meal, 1-3 parts of calcium carbonate, 5-8 parts of semen myristicae, 3-6 parts of lalang grass rhizomes, 7-12 parts of hairyvein agrimonia herbs, 15-25 parts of oat, 8-12 parts of bran, 8-12 parts of coconut oil cakes, 3-6 parts of amber, 8-12 parts of sugar residues, 5-12 parts of radix codonopsis, 3-5 parts of bighead atractylodes rhizomes, 8-12 parts of poria, 5-8 parts of cortex magnoliae officinalis, 8-12 parts of rhizoma corydalis, 3-8 parts of radix bupleuri, 8-12 parts of dried orange peel, 5-8 parts of radix puerariae, 5-12 parts of inula helenium, 8-12 parts of garlic, 9-15 parts of asiatic cornelian cherry fruits, 15-20 parts of Chinese yams, 5-8 parts of smoked plums, 5-10 parts of licorice roots, 5-8 parts of radix scrophulariae, 8-12 parts of geranium wilfordii, and 5-10 parts of halloysitum rubrum. According to the cow feed, provided by the invention, various traditional Chinese medicines and plants are added and mixed, so that the diarrhoea can be effectively prevented, and when being used for treating the diarrhoea, the feed has the advantages of taking effect quickly, and being true in treatment effects, few in side effects and low in drug residues of livestock products, drug resistance is not liable to cause, and safety of people and livestock is guaranteed.
Owner:QINGDAO ZHITONG SIHAI FURNITURE DESIGN RES & DEV CO LTD

Herbicide composition containing flucarbazone

InactiveCN106962388ASynergisticReduce dosageBiocideAnimal repellantsEcological environmentPESTICIDE ADJUVANTS
The invention discloses a wheat paddock weeding composition which comprises halauxifen-methyl, bentazone, flucarbazone and the rest pesticide adjuvant serving as effective components. The weight ratio of the halauxifen-methyl, the bentazone to the flucarbazone is (0.5-8):(47.5-760):(2.5-40), and the weight percentage of active components in the weeding composition is 10-95%. According to application requirements, the weeding composition can be prepared into dosage forms such as wettable powder, water dispersible granules, suspending agents and dispersible oil suspending agents. The wheat paddock weed control effect of the composition is better than that of individual use of the halauxifen-methyl, the bentazone and the flucarbazone, dosage of pesticides is decreased, the adverse effect of the pesticides on an ecological environment is reduced, and the problem of drug resistance of weeds is effectively solved.
Owner:SHANDONG BINNONG TECH

External-use traditional Chinese medicine probiotics spraying agent for beriberi by taking argy wormwood as raw material and preparation method thereof

The invention relates to an external-use traditional Chinese medicine probiotics spraying agent for beriberi by taking argy wormwood as a raw material and a preparation method thereof. The traditionalChinese medicine probiotics spraying agent comprises the following raw materials by weight percentage: 5-8 parts of brown sugar, 2-3 parts of Chinese medicine component, 0.2-0.3 parts of potassium dihydrogen phosphate, 0.3-0.5 parts of a yeast extract, and the balance is water, the materials are subjected to anaerobic fermentation of probiotics; the traditional Chinese medicine component comprises the following raw materials in parts by weight: 80-120 parts of argy wormwood, 50-80 parts of motherwort, 40-60 parts of Leucas chinensis, and 60-80 parts of dandelion. The external-use traditionalChinese medicine probiotics spraying agent adopts four traditional Chinese medicines as the important components of a liquid medium for probiotics of the external medicine for beriberi, which not onlyenhances the pharmacological action of the active ingredients in traditional Chinese medicine, but also makes the activity of the cultured active probiotics higher than the active probiotics culturedin other mediums, the traditional Chinese medicine probiotics spraying agent has the advantages of safety, non-toxictiyt and side effects, is not easy to produce drug resistance, has a short course of treatment, is not easy to relapse after healing, and has obvious curative effect.
Owner:SHENZHEN QUANYU BIOTECHNOLOGY CO LTD

Cucumber exosome-like vesicles containing cucurbitacin B and capable of being used as anti-cancer drugs

ActiveCN112472731AGuaranteed stabilityInhibitory activityOrganic active ingredientsAntineoplastic agentsCancer cellTumor therapy
The invention discloses cucumber exosome-like vesicles containing cucurbitacin B and capable of being used as anti-cancer drugs. Cucurbitacin B can be used for inhibiting proliferation of various cancer cells, but an extraction method of cucurbitacin B is complex and time-consuming. The method of separating the cucumber exosome-like vesicles to obtain cucurbitacin B has the advantages of easinessand quickness in operation and the like, and the lipid bilayer of the exosome-like vesicles is used as a natural protective film of cucurbitacin B, so that the stability of cucurbitacin B can be maintained for a long time. Moreover, through the principle of similarity and intermiscibility, the intake rate of cells to cucurbitacin B is also improved to a certain extent due to the existence of the lipid bilayer. When the cucumber exosome-like vesicles act on human alveolar basal epithelial cells (A549 cells) of adenocarcinoma, the maximum cell activity inhibition rate of the cucumber exosome-like vesicles is twice that of a cucurbitacin B standard substance, the dosage is lower, the toxicity to normal cells and the drug resistance to cancer cells can be reduced, and the cucumber exosome-likevesicles have good anti-cancer potential and industrialization prospect, and have an important significance in the clinical tumor treatment application.
Owner:FUJIAN MEDICAL UNIV

Alkaloid compound, preparation method and application

The invention belongs to a natural extraction compound as well as a preparation method and application thereof. In order to solve the technical problems that existing hypoglycemic drugs are more in variety, the side effect is still great, the curative effect on complications is poor and the drug resistance easily occurs with medication time extension, the invention provides an alkaloid compound aswell as a preparation method and application thereof. The molecular formula of the alkaloid compound is C46H63N3O23, and the compound is an indoline dimer alkaloid. The preparation method comprises the following steps: extracting total extract from calanthe discolor, extracting the total extract, and carrying out column chromatography separation on an n-butyl alcohol extraction layer. The preparation method is simple, convenient and effective, the alkaloid compound is obtained, the purity is high, the cost is low, and verification proves that the alkaloid compound can be applied to anti-inflammatory drugs and anti-diabetic drugs.
Owner:XI AN JIAOTONG UNIV
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